import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebServlet("/body")
public class BodyServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        resp.setContentType("text/html;charset=utf8");
        //等同于
        resp.setContentType("text/html");
        resp.setCharacterEncoding("utf8");
        resp.getWriter().write("<br>您好<br>");
    }
}
